VALVOLE DI SICUREZZA
Transcript
VALVOLE DI SICUREZZA
Valvole di Sicurezza Safety Valves VALVOLE DI SICUREZZA SAFETY VALVES 147 The safety valve is a device which allows to establish the minimum pressure of a system by keeping it as integral in case of circuit overpressure. When pressure inside it practises a highter strenght compared to the spring which holds it as closed, the spring opens by giving fire to the excess-pressure. La valvola di sicurezza è un dispositivo che permette di determinare la pressione massima di un impianto e di mantenerlo integro in caso di sovrapressione nel circuito. Quando la pressione all’interno di quest’ultimo esercita una forza superiore a quella della molla che lo tiene chiuso, questa si apre dando libero sfogo alla pressione in eccesso. Standard supply Threading from 1/8 to 1” Filetto da 1/8 a 1” Material Brass body CW614N Seal by Nbr Spring by C98 Corpo e Dado in Ottone CW614N Guarnizione in Nbr Molla in acciaio C98 Use Temperature -10°C +90°C / Viton + 250°C -10°C +90°C / Viton + 250°C Use Air - Gas - Steam Aria compressa - Gas - Vapore Impiego Options V-I V-I Opzioni PED Certification Up to 18 bar Fino 18 bar 148- Valvole di Sicurezza - Safety Valves Disponibilità standard Materiali Temperatura di utilizzo Certificazione PED Safety Valves - Valvole di Sicurezza -149 Valvola di sicurezza tarata inamovibile senza certificato Fixed setting safety valve without certification Code NVS30018... NVS30014... NVS30038... NVS30012... NVS30034... NVS3001... Valvola di sicurezza tarata inamovibile con anello senza certificato Fixed setting safety valve with ring without certification F CH P L Gr. 1/8 1/4 3/8 1/2 3/4 1" 15 15 20 22 27 34 6,0 8,0 9,0 10,0 11,0 16,0 36,0 36,0 46,0 46,0 88,0 88,0 32,5 35, 73,0 95,0 380,0 470,0 Valvola di sicurezza tarata inamovibile categoria IV Fixed setting safety valve category IV Code NVS30018...C4 NVS30014...C4 NVS30038...C4 NVS30012...C4 NVS30034...C4 NVS3001...C4 150- Valvole di Sicurezza - Safety Valves Code NVS40018..A NVS40014..A NVS40038..A NVS40012..A NVS40034..A NVS4001..A F CH P L Gr. 1/8 1/4 3/8 1/2 3/4 1" 15 15 20 22 27 34 6,0 8,0 9,0 10,0 11,0 16,0 42,0 42,0 51,0 51,0 98,0 98,0 36,0 38,0 76,0 98,0 385,0 474,5 Valvola di sicurezza tarata inamovibile con anello categoria IV Fixed setting safety valve with ring category IV F CH P L Gr. 1/8 1/4 3/8 1/2 3/4 1" 15 15 20 22 27 34 6,0 8,0 9,0 10,0 11,0 16,0 36,0 36,0 46,0 46,0 88,0 88,0 32,5 35,0 73,0 95,0 380,0 470,0 Code NVS40018..AC4 NVS40014..AC4 NVS40038..AC4 NVS40012..AC4 NVS40034..AC4 NVS4001..AC4 F CH P L Gr. 1/8 1/4 3/8 1/2 3/4 1" 15 15 20 22 27 34 6,0 8,0 9,0 10,0 11,0 16,0 42,0 42,0 51,0 51,0 98,0 98,0 36,0 38,0 76,0 98,0 385,0 474,5 Safety Valves - Valvole di Sicurezza -151